800 is 10 times as much as 80. You see im just telling you how i know, so please dont get upset it might help you. 800 divided by 10 is 80. to check that answer you can do 80 times 10. and if you are trying to multiply the 10. you just take out the ten in that equation and add the 0 behind the number you are multiplying by 10. so Ex) 10 times 70. Take out the 10. and put a 0 behind the 70. which will equal 700.
